/* =====================================================
   TECHLATHE IT SOLUTIONS LLP — Institute ERP Website
   style.css — Design token system + component styles
   ===================================================== */

/* ===== DESIGN TOKENS ===== */
:root {
  --color-primary: #4260D7;
  --color-primary-dark: #2B43B0;
  --color-primary-light: #7892F3;
  --color-accent: #2796B9;
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F1F5F9;
  --color-surface: #F8FAFC;
  --color-border: #E2E8F0;
  --color-text-primary: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --text-h1: clamp(2.25rem, 5vw, 3.5rem);
  --text-h2: clamp(1.75rem, 3vw, 2.5rem);
  --text-h3: clamp(1.1rem, 2vw, 1.35rem);
  --text-body: 1rem;
  --text-caption: 0.875rem;
  --text-small: 0.75rem;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;
  --space-16: 128px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 16px 48px rgba(66, 96, 215, 0.18);
  --shadow-2xl: 0 24px 64px rgba(66, 96, 215, 0.24);
  --transition-fast: all 0.08s ease-in-out;
  --transition-base: all 0.25s ease-in-out;
  --transition-slow: all 0.4s ease-in-out;
  --nav-height: 72px;
  --container-max: 1200px;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--color-text-primary);
  background: var(--color-bg);
  line-height: var(--leading-normal);
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Explicit aspect-ratio prevents CLS while CSS overrides dimensions */
img[width][height] {
  aspect-ratio: attr(width) / attr(height);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-2);
}

section {
  scroll-margin-top: var(--nav-height);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-gradient {
  background: linear-gradient(160deg, #f0f4ff 0%, #e8f4fd 100%);
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header h2 {
  font-size: var(--text-h2);
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  font-family: var(--font-sans);
  transition: var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(66, 96, 215, 0.30);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 24px rgba(66, 96, 215, 0.40);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(66, 96, 215, 0.06);
  transform: translateY(-1px);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

/* ===== NAV ===== */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition-base);
}

#site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-2);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-img {
  display: block;
  height: 250px;
  width: 250px;
  object-fit: contain;
}

.nav-logo-text {
  padding-left: -30px;
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  letter-spacing: -0.3px;
}

.footer-logo-link .nav-logo-text {
  color: #ffffff;
}

#nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

#nav-menu li a {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  transition: var(--transition-base);
  position: relative;
}

#nav-menu li a:hover,
#nav-menu li a.active {
  color: var(--color-primary);
}

#nav-menu li a.nav-cta {
  background: var(--color-primary);
  color: #fff;
  padding: 10px 20px;
  font-weight: var(--weight-semibold);
}

#nav-menu li a.nav-cta:hover {
  background: var(--color-primary-dark);
}

#hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  min-width: 44px;
  min-height: 44px;
  padding: 12px 8px;
  background: none;
  border: none;
  cursor: pointer;
}

#hamburger span {
  display: block;
  height: 2px;
  width: 28px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-base);
  flex-shrink: 0;
}

#hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

#hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

#hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  padding: var(--space-16) 0 var(--space-10);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: #fafbff;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(66, 96, 215, 0.08);
  color: var(--color-primary);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
  width: fit-content;
  border: 1px solid rgba(66, 96, 215, 0.18);
}

.hero-content h1 {
  font-size: var(--text-h1);
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.hero-sub {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.play-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #0f172a;
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  border: 1px solid #1e293b;
  text-decoration: none;
}

.play-badge:hover {
  background: #1e293b;
  transform: translateY(-1px);
}

.play-badge i {
  font-size: 1.5rem;
}

.play-badge span {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.play-badge small {
  font-size: 0.7rem;
  opacity: 0.7;
  font-weight: var(--weight-regular);
}

.play-badge strong {
  font-size: 0.9375rem;
  font-weight: var(--weight-semibold);
}

.play-badge--dark {
  background: var(--color-text-primary);
  margin-top: var(--space-3);
}

.hero-visual {
  position: relative;
}

.hero-screen-stack {
  position: relative;
  padding: var(--space-3);
}

.screen-desktop {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
  transform: perspective(1200px) rotateY(-4deg) rotateX(1.5deg);
  transition: transform 0.5s ease;
  border: 1px solid var(--color-border);
  width: 100%;
}

.screen-desktop:hover {
  transform: perspective(1200px) rotateY(-2deg) rotateX(0.5deg);
}

.screen-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== BLOBS ===== */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.blob-1 {
  width: 480px;
  height: 480px;
  background: rgba(66, 96, 215, 0.12);
  top: -100px;
  right: -80px;
  animation: blob-drift 10s ease-in-out infinite;
}

.blob-2 {
  width: 360px;
  height: 360px;
  background: rgba(39, 150, 185, 0.10);
  bottom: -60px;
  left: -60px;
  animation: blob-drift 12s ease-in-out infinite reverse;
  animation-delay: -5s;
}

.hero-content,
.hero-visual {
  position: relative;
  z-index: 1;
}

@keyframes blob-drift {
  0% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(24px, -16px) scale(1.04);
  }

  66% {
    transform: translate(-16px, 20px) scale(0.97);
  }

  100% {
    transform: translate(0, 0) scale(1);
  }
}

/* ===== ABOUT ===== */
#about {
  padding: var(--space-12) 0;
}

.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(66, 96, 215, 0.08);
  color: var(--color-primary);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  border: 1px solid rgba(66, 96, 215, 0.16);
}

.about-card h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--weight-extrabold);
  margin-bottom: var(--space-3);
  line-height: var(--leading-tight);
}

.about-lead {
  font-size: 1.0625rem;
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: var(--leading-relaxed);
}

.about-card p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2);
}

.about-card p:last-child {
  margin-bottom: 0;
}

/* ===== PRODUCT OVERVIEW ===== */
#product {
  padding: var(--space-12) 0;
}

.feature-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.feature-card {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 0 0 var(--color-primary-light), var(--shadow-md);
  transition: var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 0 0 var(--color-primary), var(--shadow-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(66, 96, 215, 0.10);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.feature-card h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  font-size: 0.9375rem;
}

.product-callout {
  text-align: center;
  margin: var(--space-8) 0;
  padding: var(--space-5) var(--space-8);
  border-left: 4px solid var(--color-primary);
  background: rgba(66, 96, 215, 0.04);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.product-callout blockquote {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  font-style: italic;
}

.product-screenshots {
  margin-bottom: var(--space-8);
}

.screenshot-wrapper {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
}

.product-screenshot {
  width: 100%;
  height: auto;
  display: block;
}

.product-video {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.screenshot-label {
  text-align: center;
  font-size: var(--text-small);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  font-weight: var(--weight-medium);
}

.product-cta {
  text-align: center;
}

/* ===== MODULES ===== */
#modules {
  padding: var(--space-12) 0;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-3);
}

.module-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  transition: var(--transition-fast);
}

.module-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.module-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(66, 96, 215, 0.12), rgba(39, 150, 185, 0.10));
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.module-card h3 {
  font-size: 1rem;
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
}

.module-card p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: var(--leading-relaxed);
}

/* ===== WHY CHOOSE US ===== */
#why-us {
  padding: var(--space-12) 0;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.why-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  transition: var(--transition-base);
}

.why-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.why-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(66, 96, 215, 0.10);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: var(--space-3);
}

.why-card h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
}

.why-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: var(--leading-relaxed);
}

/* ===== WHO WE SERVE ===== */
#who-we-serve {
  padding: var(--space-12) 0;
}

.serve-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.serve-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  transition: var(--transition-base);
  text-align: center;
}

.serve-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.serve-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(66, 96, 215, 0.10);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto var(--space-3);
}

.serve-card h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
}

.serve-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: var(--leading-relaxed);
}

.serve-cta {
  text-align: center;
}

/* ===== BENEFITS ===== */
#benefits {
  padding: var(--space-12) 0;
  background: var(--color-bg);
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.benefit-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.benefit-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  flex-shrink: 0;
}

.benefit-body h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
}

.benefit-body p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: var(--leading-relaxed);
}

/* ===== APP SHOWCASE ===== */
#app-showcase {
  padding: var(--space-12) 0;
}

.app-showcase-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.app-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.app-feature {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.app-feature:hover {
  border-color: var(--color-primary-light);
}

.app-feature i {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.app-feature h3 {
  font-size: 1rem;
  font-weight: var(--weight-bold);
  margin-bottom: 4px;
}

.app-feature p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: var(--leading-relaxed);
}

.app-mockup {
  text-align: center;
}

.app-screenshot {
  width: 100%;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--color-border);
}

/* ===== CONTACT ===== */
#contact {
  padding: var(--space-12) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.contact-info h3 {
  font-size: 1.25rem;
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: 0.9375rem;
}

.contact-item i {
  color: var(--color-primary);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
  width: 20px;
}

.contact-item a {
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
  word-break: break-word;
}

.contact-item a:hover {
  color: var(--color-primary);
}

.contact-item span {
  color: var(--color-text-secondary);
}

.contact-note {
  margin-top: var(--space-5);
  padding: var(--space-4);
  background: rgba(66, 96, 215, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(66, 96, 215, 0.12);
}

.contact-note p {
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  line-height: var(--leading-relaxed);
}

.contact-form-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--space-3);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

label {
  display: block;
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

label span[aria-hidden] {
  color: var(--color-error);
  margin-left: 2px;
}

.optional-label {
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

input,
select,
textarea {
  width: 100%;
  padding: 12px var(--space-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--color-text-primary);
  background: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(66, 96, 215, 0.12);
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.10);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.field-error {
  display: block;
  font-size: var(--text-small);
  color: var(--color-error);
  margin-top: 4px;
  min-height: 16px;
  font-weight: var(--weight-medium);
}

#form-confirmation {
  display: none;
}

#form-confirmation.visible {
  display: block;
}

.confirmation-content {
  text-align: center;
  padding: var(--space-8) var(--space-4);
}

.confirmation-content i {
  font-size: 3rem;
  color: var(--color-success);
  margin-bottom: var(--space-3);
}

.confirmation-content h3 {
  font-size: 1.375rem;
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-2);
}

.confirmation-content p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: var(--leading-relaxed);
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-6px);
  }

  40% {
    transform: translateX(6px);
  }

  60% {
    transform: translateX(-4px);
  }

  80% {
    transform: translateX(4px);
  }
}

.shake {
  animation: shake 0.35s ease-in-out;
}

/* ===== FOOTER ===== */
#site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.footer-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.footer-logo-img {
  display: block;
  height: 40px;
  width: auto;
}

.footer-tagline {
  color: #94a3b8;
  font-size: 0.875rem;
  margin: var(--space-2) 0;
  line-height: var(--leading-relaxed);
}

.footer-identity {
  color: #64748b;
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-3);
}

.footer-copy {
  color: #475569;
  font-size: var(--text-small);
}

.footer-nav h3,
.footer-contact h3 {
  color: #f1f5f9;
  font-size: 0.875rem;
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  color: #64748b;
  font-size: 0.875rem;
  transition: var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-primary-light);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-contact-item i {
  color: var(--color-primary-light);
  font-size: 0.875rem;
  margin-top: 2px;
  flex-shrink: 0;
  width: 16px;
}

.footer-contact-item a,
.footer-contact-item span {
  color: #64748b;
  font-size: 0.875rem;
  transition: var(--transition-fast);
  word-break: break-word;
}

.footer-contact-item a:hover {
  color: var(--color-primary-light);
}

/* ===== RESPONSIVE — TABLET 768px+ ===== */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-sub {
    max-width: 100%;
  }

  .feature-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .serve-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1.5fr;
  }

  #hamburger {
    display: none !important;
  }
}

/* ===== RESPONSIVE — DESKTOP 1024px+ ===== */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-6);
  }

  .modules-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .serve-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr 1.6fr;
  }

  .app-showcase-grid {
    grid-template-columns: 1fr 1fr;
  }

  .benefit-item--reverse {
    flex-direction: row-reverse;
  }
}

/* ===== MOBILE NAV OVERLAY ===== */
@media (max-width: 767px) {
  #hamburger {
    display: flex !important;
  }

  #nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: var(--space-2) var(--space-2) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    display: none;
  }

  #nav-menu.open {
    display: flex;
  }

  #nav-menu li {
    width: 100%;
  }

  #nav-menu li a {
    display: block;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text-primary);
  }

  #nav-menu li a.nav-cta {
    margin-top: var(--space-1);
    text-align: center;
    border-radius: var(--radius-full);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions a {
    text-align: center;
    justify-content: center;
  }

  .screen-desktop {
    transform: none;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .blob {
    animation: none !important;
  }

  .screen-desktop {
    transform: none !important;
  }
}